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<Title>Rotated Area Chart</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Rotated Area Chart</p>
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<img src="images/rotatedarea.png" width='320' height='320'>
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This example demonstrates swapping the x and y axes to produce an rotated area chart in which the area goes from left to right (instead of bottom to top).<br><br>
The x and y axes in the example are configured as follows:<br><br>
<ul><li> Initially, the x-axis is horizontal from left to right at the bottom of the plot area, while the y-axis is vertical from bottom to top at the left side of the plot area.<br><br>
<li> Swap the x and y axes using <a href="XYChart.swapXY.htm">XYChart.swapXY</a>. Now the x-axis is vertical from bottom to top at the left side of the chart, while the y-axis is horizontal from left to right at the bottom of the chart.<br><br>
<li> Use <a href="XYChart.setYAxisOnRight.htm">XYChart.setYAxisOnRight</a> to move the y-axis to the opposite side of the plot area, so that the y-axis is at the top of the plot area. (<b>Note:</b> the "right" word on setYAxisOnRight means the "right" side before "swapXY" rotation. After rotation, the right side will become to top side.)<br><br>
<li> Use <a href="Axis.setReverse.htm">Axis.setReverse</a> to reverse the direction of the x-axis, so that the x-axis is vertical from top to bottom (instead of from bottom to top).</ul>
The area in this chart is filled using a gradient color created with <a href="BaseChart.gradientColor.htm">BaseChart.gradientColor</a>.
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/rotatedarea.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the area chart
double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35, 50, 66, 56,
    48, 52, 65, 62};

// The labels for the area chart
double[] labels = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
    23, 24};

// Create a XYChart object of size 320 x 320 pixels
XYChart c = new XYChart(320, 320);

// Swap the x and y axis to become a rotated chart
c.swapXY();

// Set the y axis on the top side (right + rotated = top)
c.setYAxisOnRight();

// Reverse the x axis so it is pointing downwards
c.xAxis().setReverse();

// Set the plotarea at (50, 50) and of size 200 x 200 pixels. Enable horizontal and vertical grids
// by setting their colors to grey (0xc0c0c0).
c.setPlotArea(50, 50, 250, 250).setGridColor(0xc0c0c0, 0xc0c0c0);

// Add a line chart layer using the given data
c.addAreaLayer(data, c.gradientColor(50, 0, 300, 0, 0xffffff, 0x0000ff));

// Set the labels on the x axis. Append "m" after the value to show the unit.
c.xAxis().setLabels2(labels, "{value} m");

// Display 1 out of 3 labels.
c.xAxis().setLabelStep(3);

// Add a title to the x axis
c.xAxis().setTitle("Depth");

// Add a title to the y axis
c.yAxis().setTitle("Carbon Dioxide Concentration (ppm)");

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "",
    "title='Carbon dioxide concentration at {xLabel}: {value} ppm'"));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Rotated Area Chart&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Rotated Area Chart
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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<br><hr class="separator"><div class="copyright">&copy; 2022 Advanced Software Engineering Limited. All rights reserved.</div>
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